first draft of the owner using linked data for information retrieval
Merge remote-tracking branch 'origin/devel' into Linked_Data_NeedInformationService
refactoring for use of linked data for need information service, decoupling of owner and node
decoupling of owner and node finished; owner works now again
reload data link has been added to list needs
Merge remote-tracking branch 'origin/devel' into devel